WN377

WN377 (Southwest Airlines) is a multi-stop service on 32 routes, busiest Los Angeles to Honolulu. Of 678 departures recorded from October 2024 to July 2026, 71.7% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January3531▼ 11.4%
February28280.0%
March4350▲ 16.3%
April3423▼ 32.4%
May3118▼ 41.9%
June3032▲ 6.7%
July3036▲ 20.0%
August20––
September17––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)231218▼ 5.6%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January91.2%93.6%▲ 2.6%
February74.1%88.9%▲ 20.0%
March93.0%58.3%▼ 37.3%
April91.2%82.6%▼ 9.4%
May80.7%88.9%▲ 10.2%
June41.4%28.1%▼ 32.0%
July50.0%44.4%▼ 11.1%
August85.0%––
September100.0%––
October67.7%–in progress
November44.8%––
December38.7%––
Year-to-date average (Jan–Jul)74.5%69.3%▼ 7.0%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January10▼ 100.0%
February110.0%
March02–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)330.0%

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 99.0% 671
  • Cancelled 1.0% 7

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. LAX–HNL50 26.0%
  2. LAS–HOU49 73.5%
  3. OAK–BUR47 95.7%
  4. IND–BWI43 86.1%
  5. DEN–LAX42 83.3%
  6. ATL–DEN42 39.0%
  7. MKE–DEN41 87.8%
  8. SAT–BNA34 100.0%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

11
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 34 34 100.0% 0
December 2024 46 46 71.7% 0
January 2025 35 34 91.2% 1
February 2025 28 27 74.1% 1
March 2025 43 43 93.0% 0
April 2025 34 34 91.2% 0
May 2025 31 31 80.7% 0
June 2025 30 29 41.4% 1
July 2025 30 30 50.0% 0
August 2025 20 20 85.0% 0
September 2025 17 17 100.0% 0
October 2025 31 31 67.7% 0
November 2025 30 29 44.8% 1
December 2025 31 31 38.7% 0
January 2026 31 31 93.6% 0
February 2026 28 27 88.9% 1
March 2026 50 48 58.3% 2
April 2026 23 23 82.6% 0
May 2026 18 18 88.9% 0
June 2026 32 32 28.1% 0
July 2026 36 36 44.4% 0

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